Electrotherapeutic apparatus



-No Model.) 3 SheetsSheet 1 O. PALMLEAP. I ELEGTROTHERAPEUTIG APPARATUS.

Patented Dec. 3, 1895.

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(No Model.) 3 Sheets-Sheet 2.

G. PALMLEAF. ELEGTROTHERAPEUTIG APPARATUS.

No. 550,688. Patented Dec. 3, 1895.

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(No Model.) -3 Sheets-Sheet 3.

0. PALMLEAF. ELEGTROTHERAPEUTIG APPARATUS.,

No. 550,688. Patnted 1390.3, 1895'.

611M236 fa/Zmlewf V fl g- 61mm ANDREW B GHANA 610" DC UNITED STATESPATENT OEEIcE.

CHARLES PALMLEAF, OF SEATTLE, IVASHINGTON.

ELECTROTHERAPEUTIC APPARATUS.

SPECIFICATION forming part of Letters Patent No. 550,688, dated December3, 1895.

Application filed April 1, 1895. Serial No. 543,969. (No model.)

To aZZ whom it may concern:

Be it known that I, CHARLES PALMLEAF, a citizen of theUnitedStates,residin g at Seattle, in the county of King and State ofashington, have invented certain new and useful Improvements in ElectricTherapeutic Apparatus; and I do declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to theletters of reference marked thereon, which form a part of thisspecification.

My invention relates to improvements in electric therapeutic apparatus,the object being to provide a simple and compact apparatus which can bereadily removed from place to place and from which can be derived acurrent of varying intensity.

Figure l is a plan view of an apparatus e1nbodying my improvements,showing the same arranged within a case or receptacle specially designedto receive it. Fig. 2 is a vertical sectional view of said case. Fig. 3is a side elevation thereof. Fig. 4 is a detail end elevation of theapparatus. Fig. 5 is a side elevation of the same. Fig. 6 illustratesthe removable core. Figs. 7 to 10 are detail views of electrodes.

In the drawings, wherein like letters of reference denote correspondingparts in the several views, A designates as a whole a table or standwhich I have constructed for the special purpose of holding andprotecting my improved apparatus. This table or stand is supported onlegs or standards A and is provided with a swinging cover or top 0. InFigs. 1 and 3 this top 0 is shown as swung up to expose the apparatus orto permit of its ren1 oval from the table but normally such coverextends entirely over the table, as shown in Fig. 2, and, besidesprotecting the apparatus, permits of the table being used as an ordinarystand. The top 0 is connected with the body of the table by means ofside bars or arms 0, which are provided at their free ends withlaterally-projecting pins 0, that extend through slots a, formed in thesides of the table.

The interior of the table or stand is divided into three parallelcompartments by means of partitions A and the central compartment isspecially formed to receive the apparatus, the other side compartmentsserving to hold the electrodes, removable cores, and other detachableparts of the apparatus, or for any other purpose. The rear portion ofsaid central compartment of the table is made of greater depth than theother portions thereof, and there is thus formed a downwardly-extendingsocket or receptacle A in which may be fitted the cell or battery D ofthe apparatus. In the forward and relatively shallower part of saidcentral compartment is adapted to be fitted the main induction-coil E,which is connected with the elements of the cell D by suitableconductors D.

The induction-coil E is mounted and supported on a base-plate E by meansof suitable end pieces or supports E The conductors D, leading from thecell or battery D, are designed to have their free ends inserted insockets in the upper ends of posts D One end of the primary winding ofthe coil E is connected with a post F to which the spring-arm F isconnected, and on an arm extending out from the adjacent post D ismounted a pivoted finger f, adapted to contact with said spring'arm F.The post F is electrically connected with a socket G in the base-plateE. The other end of the primary winding is electrically connected with aseries of sockets H H II, and H in the base plate and with the post D atthe right-hand end of the coil. One end of the secondary winding of thecoil is connected with a socket G in the base-plate and the other end ofsuch winding is connected with the sockets H H 11, and H.

The sockets in the base-plate are designed to receive plugs or pinscarried at one end of flexible distributing conductors I, through whichthe current can be transmitted from the coil to any desired portion ofthe body.

The number of sockets in the base-plate, the connecting thereof with thevarious windings of the coil, and the number of the latter may be variedfrom that shown, as I make no claim herein for such features of theapparatus, my improvements being adapted for use with various styles ofcoils, 850.

Although in many instances it is unnecessary to remove theinduction-coil from the box or stand when the apparatus is in use, yetin certain cases it is desirable to move it from place to place andsecure it at points and in positions which would be impossible to dowere it retained within the table. I have therefore provided thebase-plate E, on which the said coil is mounted, as heretoforedescribed, with an adjustable clamp, by which it can be quickly andsecurely fastened to the projecting edge of a table, mantel-shelf, orsimilar article.

The stationary portion of the clamp, which may be formed in a singlecasting, consists of two substantially parallel arms g g, which areconnected by an arm or bar 9 from which extends a web or plate 9 Thisplate g extends out from the bar g on the opposite side thereof from theaforesaid arms 9 g, and is securely fastened to the base plate E byscrews or other suitable fastening means. The free end of the arm g isenlarged to form the head G which constitutes the stationary jaw of theclamp, and the opposing movable head G of the clamp is carried by athreaded pin g, working in a threaded passage in the arm g, and providedat its outer end with a thumb-piece g. It will thus be seen that thebase-plate E and parts thereon can be quickly secured in position orremoved for the purpose of transportation.

The core of the in duction-coil is preferably made hollow, and I haveprovided an auxiliary core which is adapted to be inserted therein tocontrol and regulate the intensity of the current. This auxiliary core,which is shown in Fig. 6, consists of a cylindrical shell, in which areformed a series of perforations II". These perforations are arranged inthe form of a spiral extending longitudinally of the core piece andprovide a series of projections, which as the core is inserted into thecoil tend to hold the same, so that its position with relation to thecoil is readily regulated.

To the outer ends of the flexible distributing-conductors I are securedelectrodes, by which the current is applied as desired. The electrodesmay be of various forms, according to the special treatment desired. InFigs. '7 to 10 I have illustrated four forms, each possessing certainadvantages for the treatment of certain cases.

The electrode illustrated in Fig. 7 consists of a spring-metal clamp,the ends of which may be clamped over the edge or rim of a metal basinand a current of electricity thereby caused to pass through water placedtherein.

In Fig. 8 I have shown an electrode which is adapted to serve as asponge-holder. It consists of a handle J of any suitable nonconductingmaterial and an open ring or sponge-holder J which may be made hollow ortubular, if desired, to reduce the weight thereof. The conductor Iextends into the handle J and is connected to one end of a shank or pin,by which the handle and body of the holder are connected and throughwhich the current is conducted to the holder J In Fig. 9 the electrodeis made in the form of a brush, while in Fig. 10 it is made as a beltadapted to be secured about a persons body and provided on its innerface with a series of aluminum plates or disks L, which are electricallyconnected together and to the conductor I.

Having thus described myinvention, what I claim, and desire to secure byLetters Patent, is

1. In an electric therapeutic apparatus, the combination with aninduction 'coil having a hollow or tubular core, of an auxiliary coreprovided with a series of spirally arranged perforations, substantiallyas set forth.

2. In an electric therapeutic apparatus, an electrode consisting of ahandle of non conducting material, a ring like member of conductingmaterial adapted to hold a sponge, and a pin of conducting materialconnecting said ring and handle, substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

CHARLES PALHLEAF. lVitnesses:

GEo. II. KING, R. E. McCoY.

